Problems

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Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
0-1 Sequences 6590 992 15% 0.00 1273 649 51% 6.7
10 Kinds of People 11977 2491 21% 0.01 2118 1451 69% 5.1
2048 6608 3119 47% 0.00 2999 2561 85% 2.4
3D Printed Statues 6915 3216 47% 0.00 3025 2709 90% 2.0
3D Printer 577 112 19% 0.00 217 88 41% 8.4
3-Sided Dice 2018 182 9% 0.00 328 124 38% 8.5
4 thought 6515 2207 34% 0.00 2199 1839 84% 2.8
A1 Paper 4310 1285 30% 0.00 1259 1000 79% 3.4
Aaah! 22773 10706 47% 0.00 9571 8913 93% 1.6
Abandoned Animal 1350 278 21% 0.03 337 244 72% 5.2
ABC 9463 4362 46% 0.00 4137 3765 91% 1.7
Ab Initio 398 84 21% 0.10 71 49 69% 7.7
Above Average 5703 2378 42% 0.00 2384 2140 90% 2.0
A+B Problem 6423 642 10% 0.03 911 311 34% 8.2
A Brief Gerrymander 189 41 22% 0.15 43 26 60% 8.5
Abstract Art 233 68 29% 0.00 67 51 76% 5.5
Absurdistan Roads II 528 192 36% 0.00 187 129 69% 6.7
Absurdistan Roads III 1311 361 28% 0.02 348 267 77% 5.5
Access Points 249 100 40% 0.01 90 69 77% 5.9
A Classy Problem 7541 1952 26% 0.01 1678 1299 77% 4.3
ACM Contest Scoring 5438 3444 63% 0.00 3018 2850 94% 1.5
Adding Words 8115 1939 24% 0.00 1882 1447 77% 3.6
A Different List Game 6107 424 7% 0.00 752 154 20% 9.1
A Different Problem 23800 9165 39% 0.00 8407 7310 87% 2.0
Adjoin the Networks 1596 436 27% 0.00 383 302 79% 5.6
Administrative Difficulties 931 214 23% 0.03 232 155 67% 6.4
Advanced Causal Measurements 57 18 32% 0.10 22 18 82% 6.2
Adventure Begins 208 65 31% 0.06 73 55 75% 4.1
Adventures in Moving -- Part IV 781 241 31% 0.00 214 186 87% 4.3
A Favourable Ending 1349 353 26% 0.00 327 246 75% 4.6
A Feast For Cats 1770 614 35% 0.00 408 343 84% 4.3
Air Conditioned Minions 3984 1118 28% 0.00 1164 881 76% 3.5
Airline Hub 1641 298 18% 0.01 323 180 56% 6.8
Airport Coffee 736 164 22% 0.09 153 115 75% 7.0
Airport Construction 2989 397 13% 0.02 318 169 53% 7.6
Airport Logistics 49 12 24% 0.00 18 12 67% 7.4
Airports 353 103 29% 0.11 101 75 74% 5.9
Akcija 5516 2431 44% 0.00 2193 1938 88% 2.0
Aladin 745 71 10% 0.10 116 24 21% 8.9
Alchemy 98 16 16% 0.02 29 16 55% 8.7
Alea iacta est 29 11 38% 0.34 14 11 79% 6.9
Alice in the Digital World 2539 710 28% 0.01 684 539 79% 3.9
Alien Codebreaking 134 7 5% 3.23 20 5 25% 9.0
Alien Numbers 1887 985 52% 0.00 953 868 91% 1.9
A List Game 6664 1977 30% 0.00 1902 1599 84% 2.9
All about that base 2582 1012 39% 0.00 983 823 84% 2.9
All Different Directions 1007 438 43% 0.00 407 354 87% 2.6
Allergy Test 399 120 30% 0.00 126 67 53% 7.5
All Friends 812 156 19% 0.00 143 75 52% 8.9
All Just A Dream 1659 380 23% 0.05 261 182 70% 6.6
All Pairs Shortest Path 7444 1325 18% 0.02 899 633 70% 5.7
Almost Perfect 5783 1357 23% 0.00 1453 1130 78% 3.7
Almost Union-Find 5446 963 18% 0.02 865 497 57% 6.6
Alphabet 1117 550 49% 0.00 553 471 85% 3.0
Alphabet Spam 6178 3964 64% 0.00 3140 3025 96% 1.3
Alternative Bracket Notation 203 84 41% 0.00 90 74 82% 5.4
Altruistic Amphibians 347 82 24% 0.24 84 60 71% 5.4
Amalgamated Artichokes 3429 1532 45% 0.01 1384 1203 87% 2.8
Amanda Lounges 1273 359 28% 0.03 330 260 79% 5.6
A Mazing! 2146 494 23% 0.09 229 176 77% 5.1
Amazing Adventures 156 46 29% 0.03 53 36 68% 5.7
Amazing Race 269 73 27% 0.39 79 58 73% 6.9
Ambiguous Result 215 54 25% 0.02 79 51 65% 7.3
Amsterdam Distance 1150 509 44% 0.00 545 451 83% 2.8
A Multiplication Game 543 170 31% 0.00 195 145 74% 4.7
Anagram Counting 2867 1106 39% 0.00 1063 882 83% 3.1
Andrew the Ant 233 66 28% 0.06 78 58 74% 5.6
A New Alphabet 9097 4136 45% 0.00 3878 3586 92% 1.8
An I for an Eye 389 103 26% 0.00 111 87 78% 4.0
Animal Classification 1515 348 23% 0.03 295 196 66% 6.8
An Industrial Spy 1355 704 52% 0.02 560 481 86% 3.2
Another Brick in the Wall 2615 1270 49% 0.00 1225 1123 92% 1.8
Another Candies 6591 1767 27% 0.00 1861 1522 82% 2.9
Another Dice Game 87 63 72% 0.00 57 52 91% 3.4
Another Query on Array Problem 1267 159 13% 0.05 270 113 42% 7.9
Antenna Placement 32 18 56% 0.00 10 8 80% 6.6
Anthony and Cora 691 181 26% 0.00 216 151 70% 5.5
Anthony and Diablo 2149 738 34% 0.00 780 676 87% 2.4
Antiarithmetic? 1137 214 19% 0.01 271 153 56% 7.2
Ants 2890 1311 45% 0.00 1024 911 89% 2.3
Apaxiaaaaaaaaaaaans! 9977 6100 61% 0.00 5445 5219 96% 1.4
Apostrophe Catastrophe 65 17 26% 0.00 17 11 65% 6.2
Appalling Architecture 386 103 27% 0.00 97 83 86% 3.4
Apparatus 644 164 25% 0.01 128 97 76% 5.3
Apple Market 454 93 20% 0.07 111 58 52% 8.0
Apples, Cherries, and Mangos 376 117 31% 0.02 115 85 74% 6.6
A Prize No One Can Win 951 400 42% 0.00 353 310 88% 2.5
Aquarium Tank 463 126 27% 0.00 122 95 78% 5.3
Aqueduct Construction 162 61 38% 0.01 47 41 87% 5.7
A Question of Ingestion 1128 279 25% 0.00 258 197 76% 5.8
Arable Area 248 62 25% 0.04 62 40 65% 7.3
Arachnophobia 264 79 30% 0.14 74 61 82% 4.7
A Random Problem 170 42 25% 0.00 45 26 58% 7.0
A Rational Sequence 1432 493 34% 0.00 511 372 73% 4.7
A Rational Sequence 2 1854 1364 74% 0.00 1208 1159 96% 1.5
A Rational Sequence (Take 3) 722 603 84% 0.00 485 465 96% 1.8
Arbitrage? 1782 365 20% 0.02 269 217 81% 3.6
Arcade! 1164 210 18% 0.01 202 145 72% 6.0
Arctic Network 1369 489 36% 0.00 434 347 80% 4.6
A Real Challenge 6748 3227 48% 0.00 3128 2925 94% 1.6